Well the reason for that is that when I play in Glide, everything runs fast and well. But when I start playing, something is bugging the graphics. Once in every 3 seconds you can see a minor framedrop. So, even when i play with 100 fps, i see that framedrop once in three seconds. It's pretty annoying. And it's only in glide and normal opengl on Ut. Don't know what it is... Really strange.

have you tried turning OFF the overclock on the V5? also, which glide are you using? and what package are you using to overclock with, there is only ONE overclocking utility that will overclock BOTH chips.